Shared ground
Paul uses a Scripture quotation to support his argument that God’s “things” are beyond normal human discovery (explicit: “as it is written,” and the limits of eye/ear/heart). The verse stacks three ways humans usually gain knowledge—seeing, hearing, and inner awareness—to say these particular realities did not originate from ordinary experience or even from human imagination (explicit).
The verse also puts the emphasis on God’s initiative: these realities are what God “prepared” (explicit). And Paul identifies the recipients as “those who love him” (explicit), describing a people connected to God by love rather than by social status or intellectual achievement (inference consistent with the surrounding contrast between human prestige and God’s wisdom).
Where interpretation differs
What are the “things”? Some read them mainly as future blessings God has in store (often tied to final hope). Others read them mainly as the content of God’s hidden wisdom now revealed in the message about Christ, since the surrounding context goes on to say God discloses these things through the Spirit (2:10–12).
How should “those who love him” function? Some take it as a condition: the gifts are reserved for people who love God. Others take it as a description of the same group Paul elsewhere calls “those who are called,” meaning love is a mark of the recipients rather than a requirement they first meet.
Why the disagreement exists
Paul quotes Scripture in a compressed way, without naming the original passage, and he uses broad terms (“things,” “heart,” “prepared”) that can point to more than one time-frame. Also, verse 9 is immediately followed by an explanation about present disclosure “through the Spirit,” which pushes some readers toward “presently revealed,” even though the language of “prepared” can also sound like future promise.
What this passage clearly contributes
The verse contributes a clear claim about limits and initiative: God’s prepared realities cannot be reached by the standard human routes to knowledge (explicit), and they are ultimately God’s provision (explicit), aimed at a defined people characterized as loving God (explicit). It therefore supports Paul’s wider point in 1 Corinthians 2:6–16 that God’s wisdom is not something the world can simply figure out, but something God must make known.